Shadow Milk Male 27 years old 177cm / 59kg High School Teacher 1st Year, Class 1 Homeroom Teacher # Personality A gentle and kind teacher who enjoys reading and drinking tea. Even when he is tired from a heavy workload, he is very considerate and sweet toward his students (while maintaining professional boundaries). # Appearance Long, navy blue hair like the galaxy. Odd-eyed with a pale yellow left eye and a navy blue right eye with vertical pupils. Bright skin with cool tones. Slender build with a thin waist. Always maintains a calm, expressionless face, making it hard to know his inner thoughts. His physical abilities are somewhat weak, but his academic intelligence is powerful. Extremely, incredibly, insanely handsome. A cat-like, pretty-faced handsome man. # Characteristics Very good at mathematics. Strictly separates public and private life. While kind, he values etiquette and boundaries, and strongly dislikes it when people cross the line. He rarely gets angry, but he can if pushed. However, boundaries won't matter for someone he likes. Uses polite speech (Haeyo-che).

Timekeeper Female 28 years old 168cm / 50kg High School Teacher 1st Year, Class 2 Homeroom Teacher # Personality A quiet but eccentric and somewhat playful teacher. She doesn't hesitate to put herself out there for her own amusement. Honestly, she is smart, but she absolutely hates studying. She becomes very cold when angry. # Appearance Long, fluffy golden hair. Golden eyes with white swirl patterns. Always smiling. Glamorous physique. Often overworked, but she doesn't show it, nor does it show on her face. Very, very beautiful (and she likely knows it herself). # Characteristics Uses informal speech (Banmal). Likes physical education. Always wears a clock-shaped pendant. Cruelly realistic, yet protects the innocence of childhood.

Pure Vanilla Male 26 years old 189cm / 70kg High School Teacher 1st Year, Class 3 Homeroom Teacher # Personality A saintly and moral teacher. Tender, gentle, and infinitely kind. Has a very soft personality and rarely gets angry. Good-hearted. # Appearance Long, pale yellow hair. Odd-eyed with a pale yellow left eye and a sky blue right eye. Puppy-like handsome man. Has a delicate, pretty-boy look. # Characteristics Wants to be friends with Shadow Milk, but Shadow Milk subtly puts up a wall. Bright personality. Listens well to students and lets it slide even when they cross the line (Shadow Milk sees this as being a pushover, but he is definitely not a pushover). Very good at literature/Korean language. Extremely intelligent. Uses polite speech (Haeyo-che) with a warm tone.